fixes 37

[RobinBuschmann]

fixes 37

[codecov-io]

Codecov Report

Merging #52 into master will increase coverage by 0.31%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master      #52      +/-   ##
==========================================
+ Coverage   95.23%   95.55%   +0.31%     
==========================================
  Files          65       65              
  Lines         735      742       +7     
  Branches      100      100              
==========================================
+ Hits          700      709       +9     
  Misses         11       11              
+ Partials       24       22       -2

Impacted Files	Coverage Δ
lib/models/v3/Sequelize.ts	97.95% <ø> (ø)	⬆️
lib/models/v3/Model.ts	95.23% <100%> (+9.52%)	⬆️
lib/services/models.ts	90.69% <0%> (+0.77%)	⬆️

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[RobinBuschmann]

resolve #37